Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 313 [Rate centres in NPA 313] [Dial plan for NPA 313]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-731 A Detroit Zone 3 MI SFLDMIQJDS1  7279 MCI WORLDCOM COMMUNICATIONS, INC. - MI 340      
313-731 0 Detroit Zone 3 MI   7279 MCI WORLDCOM COMMUNICATIONS, INC. - MI 340      
313-731 1 Detroit Zone 3 MI   7279 MCI WORLDCOM COMMUNICATIONS, INC. - MI 340      
313-731 2 Detroit Zone 3 MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2009-03-07   
313-731 3 Detroit Zone 3 MI   4125 XO COMMUNICATIONS SERVICES, INC. - MI 340   2005-05-06   
313-731 4 Detroit Zone 3 MI   4125 XO COMMUNICATIONS SERVICES, INC. - MI 340   2005-05-06   
313-731 5 Detroit Zone 3 MI   4125 XO COMMUNICATIONS SERVICES, INC. - MI 340   2005-05-06   
313-731 6 Detroit Zone 3 MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2008-07-25   
313-731 7 Detroit Zone 3 MI   516C AT&T CORP. 340   2006-06-30   
313-731 8 Detroit Zone 3 MI   1200 TALK AMERICA INC. - MI 340   2006-04-03   
313-731 9 Detroit Zone 3 MI   7279 MCI WORLDCOM COMMUNICATIONS, INC. - MI 340      

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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